Method and article for deflecting material



July 1, 1947. E. L. BEISEL METHOD AND ARTICLE FOR DEFLECTING MATERIAL I Filed June 18; 1945 m ELIEIENE LEE/55L l atente cl July 1 1947 METHOD AND ARTICLE FOR DEFLECTING MATERIAL Eugene L. Beisel, Chicago, Ill.

Application June 18, 1945, Serial No. 600,203

2 Claims.

The present invention relates to a method and improvements in structural elements which in use are normally subjected to abrasive by paramagnetic particles and materials producing excessive wear and requiring frequent replacement.

While the principles of the present invention are in no way limited to any particular field or type of equipment, they are particularly adaptable for use as deflector plates and surfaces of metallic abrasive machines in which a metallic abrasive is thrown at high speed for cleaning castings and, other purposes, as for example shot treatment of springs for improving their physical characteristics.

The present invention proposes the use of magnetic plates, bars and sheets or the like in places subjected to wear through bombardment by paramagnetic particles and materials, certain por tions of the material being attracted, to the plate and forming an ever changing protective film upon the surface of the magnetic element.

Thus, one of the objects of the present invention is to provide a magnetic wearing or deflecting element of the type described.

A further object is to provide a structural element with a magnetic surface to which is attracted and supported a film of paramagnetic particles and materials presenting a wearing surface to similar particles and materials which would normally be brought into direct wearing contact with the element.

A further object of the invention is to provide a method of protecting surfaces of metallic abrasive throwing machines and the like, which involves the step of attracting a portion of the abrasive material to the surface to provide a protective film against wear.

These and other objects and advantages which reside in the present invention will be more fully understood after consideration of the following specification and claims.

In the drawing,

Fig. 1 is a diagrammatical view of a metallic abrasive throwing wheel having deflector plates arranged about a portion of its periphery, and

Fig. 2 is a perspective view of a deflector or other structural element showing paramagnetic particles adhering to one surface thereof.

In view of the wide field of application of the principles of the present invention and the many forms and shapes that it may take, it has been deemed advisable to illustrate the same in one of its simplest forms. In Fig. 1 is diagrammatically illustrated a metallic abrasive throwing wheel [0, which is designed to be rotated at high speed.

The metallic abrasive material is fed into the center of the wheel through a chute l2. The wheel is provided with radial members 14 which direct the metallic abrasive material [6 out to the periphery of the wheel where it is tangentially discharged as indicated. Deflecting and wear plates I8, 20 and 24 are indicated spaced about a portion of the periphery of the wheel 10.

According to the principles of the present invention it is proposed to magnetize one or more of the deflector or wearing plates to provide one or more surfaces capable to attract thereto particles of the metal abrasive material to form a protective film which receives the abrasive action of the material stream in lieu of the same bein directed against the surface of the deflector or Wearing element.

In Fig. 2 is shown a very simple form of deflector or wear plate 24, which has been magnetized in any suitable manner to attract to one or more surfaces thereof a film of paramagnetic particles or materials 26. With the element 24 positioned in the path of a stream of paramagnetic particles, a certain portion thereof will be attracted to one of the surfaces as shown to provide a protective film taking the wear of the stream of particles which otherwise would be taken by a surface other than the deflector plate 24. It will be understood that the film of particles 26 will be constantly changing, being replaced by new particles as the same are worn away or driven off the plate by the particles of the stream. The element which attracts the film of protective particles may be magnetized in any known manner and may be of any suitable shape or construction. Magnetized bars, plates and strips may be used. The magnetic field may be set up by permanent or electromagnets, or in any other manner. It is anticipated that the principles of the present invention may be used in connection with abrasive action of materials which are only partially paramagnetic or only a portion thereof are capable of being attracted and held to the surface being protected.

What I claim as new and desire to protect by Letters Patent is:

1. In a throwing machine for paramagnetic particles, a magnetized wear plate having a deflecting surface against which the particles are thrown and deflected toward a point of discharge, said plate being characterized by its ability to attract a protective film of particles to said surface.

2. A method of increasing the length of service of wear plates in throwing machines for para- 3 4 magnetic particles, against which the particles are thrown and deflected toward a point of dis- REFERENCES CITED a Comprising the p of mag a y 0011- The following references are of record in the pling a film of said particles to said surface, file of this patent;

whereby said film becomes the efiective deflecting 1' surface and is continuously replenished by the 0 UNITED STATES PATENTS source of particles being deflected. Number Name Date EUGENE L. .BEISEL. 2,323,786 Beisel July 6, 1943 

